Abstract: A positive electrode active material for lithium ion batteries, the positive electrode active material being represented by a composition shown in the following formula (1): LiaNibCOcMndMeOf??(1) in which formula (1), 1.0?a?1.05, 0.8?b?0.9, b+c+d+e=1, 1.8?f?2.2, 0.0025?e/(b+c+d+e)?0.016, and M is at least one selected from Zr, Ta and W; wherein WDX mapping analysis of positive electrode active material particles in a field of view of 50 ?m×50 ?m by FE-EPMA indicates that an oxide of the M adheres to surfaces of the positive electrode active material particles, and the oxide of the M is not present as independent particles that do not adhere to the surfaces of the positive electrode active material particles.

Abstract: An electromagnetic wave shielding material includes a metal layer for ground connection provided as an outermost layer of a laminate; wherein only one surface of the metal layer for ground connection is laminated on the insulating layer via the adhesive layer, and assuming d1 is a thickness and ?1 is a Young's modulus of the adhesive layer on the one surface, d2 is a thickness and ?2 is a Young's modulus of the metal layer for ground connection, and ?3 is a composite Young's modulus of the adhesive layer on the one surface and the metal layer for ground connection, the following relational expression is satisfied: ?3/?2>0.60; in which, ?3=?1 (d1/(d1+d2))+?2 (d2 (d1+d2)).

Abstract: Provided is an indium phosphide substrate, a method for manufacturing indium phosphide substrate, and a semiconductor epitaxial wafer capable of suppressing an occurrence of contamination of the surface of the indium phosphide substrate caused by residues at the edge part. An indium phosphide substrate, wherein a surface roughness of an edge part of the substrate has a root mean square height Sq of 0.15 ?m or less, as measured by a laser microscopy on the entire surface of the edge part.

Abstract: Provided is an indium phosphide substrate, a method for manufacturing indium phosphide substrate, and a semiconductor epitaxial wafer capable of suppressing cracks in indium phosphide substrates caused by edge irregularities and processing damage. An indium phosphide substrate, wherein a surface roughness of an edge part of the substrate has a maximum height Sz of 2.1 ?m or less, as measured by a laser microscopy on the entire surface of the edge part.

Abstract: Provided is an indium phosphide substrate, a semiconductor epitaxial wafer, a method for producing an indium phosphide single-crystal ingot and a method for producing indium phosphide substrate capable of suppressing concave defects. An indium phosphide substrate has a diameter of 100 mm or less, and at least one of surfaces has zero concave defects detected in the topography channel, by irradiating a laser beam of 405 nm wavelength with S-polarized light on the surface.

Abstract: A method for producing mixed metal salts containing manganese ions and at least one of cobalt ions and nickel ions, the method including: an Al removal step of subjecting an acidic solution containing at least manganese ions and aluminum ions, and at least one of cobalt ions and nickel ions, to removal of the aluminum ions by extracting the aluminum ions into a solvent, the acidic solution being obtained by subjecting battery powder of lithium ion batteries to a leaching step; and a precipitation step of neutralizing an extracted residual liquid obtained in the Al removal step under conditions where a pH is less than 10.0, to precipitate mixed metal salts comprising a metal salt of manganese and a metal salt of at least one of cobalt and nickel.

Abstract: A method for recovering lithium from lithium ion battery scrap according to this invention comprises subjecting lithium ion battery scrap to a calcination step, a crushing step, and a sieving step sequentially carried out, wherein the method comprises, between the calcination step and the crushing step, between the crushing step and the sieving step, or after the sieving step, a lithium dissolution step of bringing the lithium ion battery scrap into contact with water and dissolving lithium contained in the lithium ion battery scrap in the water to obtain a lithium-dissolved solution; a lithium concentration step of solvent-extracting lithium ions contained in the lithium-dissolved solution and stripping them to concentrate the lithium ions to obtain a lithium concentrate; and a carbonation step of carbonating the lithium ions in the lithium concentrate to obtain lithium carbonate.

Abstract: Provided is a method for selecting arsenic-containing minerals. A peptide comprising an amino acids sequence according to the following formula: (T,S,N,Q)-(L,I,V,F,A)-(E,D)-(R,K,N,M,D,C,P,Q,S,E,T,G,W,H,Y)-(L,I,V,F,A)-(R,K,N,M,D,C,P,Q,S,E,T,G,W,H,Y)-(L,I,V,F,A)-(L,I,V,F,A)-(L,I,V,F,A)-(R,H,K)-(T,S,N,Q)-(T,S,N,Q) wherein one amino acid is respectively selected from each group defined by paired parentheses.

Abstract: A method for dissolving a lithium compound according to the present invention includes bringing a lithium compound into contact with water or an acidic solution, and feeding, separately from the lithium compound, a carbonate ion to the water or the acidic solution to produce carbonic acid, and allowing the carbonic acid to react with the lithium compound to produce lithium hydrogen carbonate.

Abstract: Provided is a titanium copper foil which has required high strength when used as a spring, has an improved etching property, and has decreased settling, and which can be suitably used as a conductive spring material for use in electronic device parts such as autofocus camera modules. The titanium copper foil according to the present invention contains from 1.5 to 5.0% by mass of Ti, the balance being Cu and inevitable impurities, wherein in a Ti concentration curve obtained by analyzing a cross section parallel to a rolling direction along a thickness direction by STEM-EDX, a lower concentration Ti layer having a Ti concentration less than an average value of Ti concentrations in the Ti concentration curve and a higher concentration Ti layer having a Ti concentration equal to or higher than the average value of the Ti concentrations in the Ti concentration curve are alternately present in a thickness direction, and wherein the titanium copper foil satisfies 1.0% by mass?HH?30% by mass, and HH/HL?1.

Abstract: Provided is a radiation detecting element that has high adhesion between electrode portions and a substrate and does not suffer from performance failures due to insufficient insulation between the electrode portions, even if a distance between the electrode portions is narrower in order to obtain a high-definition radiation drawn image. The radiation detecting element includes: a plurality of electrode portions; and an insulating portion provided between the electrode portions on a surface of a substrate made of a compound semiconductor crystal containing cadmium telluride or cadmium zinc telluride, wherein an intermediate layer containing tellurium oxide is present between each of the electrode portions and the substrate, and wherein tellurium oxide is present on an upper portion of the insulating portion, and the tellurium oxide on the upper portion of the insulating portion has a maximum thickness of 30 nm or less.

Abstract: A sputtering target according to one embodiment is an integrated sputtering target comprising a target portion and a backing plate portion, both of them being made of copper and unavoidable impurities, wherein a Vickers hardness Hv is 90 or more, and wherein a flat ratio of crystal grains in a cross section orthogonal to a sputtering surface is 0.35 or more and 0.65 or less.

Abstract: A method for dissolving a lithium compound according to the present invention includes bringing a lithium compound into contact with water or an acidic solution, and feeding, separately from the lithium compound, a carbonate ion to the water or the acidic solution to produce carbonic acid, and allowing the carbonic acid to react with the lithium compound to produce lithium hydrogen carbonate.

Abstract: Provided is a method for efficiently promoting a leaching reaction of copper. Equipment for leaching copper includes a reactor for leaching reaction and a controller for oxidation-reduction potential. The reactor is configured to be provided with a leaching solution containing iodine and iron. The reactor is configured to be capable of being tightly sealed during the leaching reaction. The controller for oxidation-reduction potential is configured so that, during the leaching reaction, the oxidation-reduction potential of the leaching solution can be maintained at 500 mV (based on Ag/AgCl reference) or higher.

Abstract: A method for recovering lithium from lithium ion battery scrap according to this invention comprises subjecting lithium ion battery scrap to a calcination step, a crushing step, and a sieving step sequentially carried out, wherein the method comprises, between the calcination step and the crushing step, between the crushing step and the sieving step, or after the sieving step, a lithium dissolution step of bringing the lithium ion battery scrap into contact with water and dissolving lithium contained in the lithium ion battery scrap in the water to obtain a lithium-dissolved solution; a lithium concentration step of solvent-extracting lithium ions contained in the lithium-dissolved solution and stripping them to concentrate the lithium ions to obtain a lithium concentrate; and a carbonation step of carbonating the lithium ions in the lithium concentrate to obtain lithium carbonate.

Abstract: A method for producing a mixed metal solution containing manganese ions and at least one of cobalt ions and nickel ions, the method including: an Al removal step of subjecting an acidic solution containing at least manganese ions and aluminum ions, and at least one of cobalt ions and nickel ions, to removal of the aluminum ions by extracting the aluminum ions into a solvent while leaving at least a part of the manganese ions in the acidic solution in an aqueous phase, the acidic solution being obtained by subjecting battery powder of lithium ion batteries to a leaching step; and a metal extraction step of bringing an extracted residual liquid obtained in the Al removal step to an equilibrium pH of 6.5 to 7.5 using a solvent containing a carboxylic acid-based extracting agent, extracting at least one of the manganese ions and at least one of the cobalt ions and the nickel ions into the solvent, and then back-extracting the manganese ions and at least one of the cobalt ions and nickel ions.

Abstract: Provided are sulfide-based solid electrolyte with good ionic conductivity and an all-solid lithium ion battery using the same. A sulfide-based solid electrolyte having an argyrodite-type structure, wherein a composition of the sulfide-based solid electrolyte is represented by the formula: Li8GeS5-xTe1+x in which: ?0.5?x<0, 0<x?0.375.

Abstract: A raw material supply device and a device for processing electronic and electrical device part scraps, which can control dropping positions of a raw material containing substances having different shapes and specific gravities, and a method for processing electronic and electrical device part scraps using those devices. The raw material supply device includes a receiving port, a discharge port, a first guide surface, and a second guide surface on a surface opposing to the first guide surface. The processing device includes a first conveying unit, a raw material supply device, a second conveying unit, and a pyramid-shaped disperser. The processing method comprises a sorting step, wherein the sorting step comprises dropping the electronic and electrical device part scraps onto a plurality of dispersion surfaces of a pyramid-shaped disperser, and dispersing the electronic and electrical device part scraps in a plurality of directions on a conveying surface.

Abstract: A thin film is provided that primarily comprises titanium oxide and includes Ti, Ag and O. The thin film contains 29.6 at % or more and 34.0 at % or less of Ti, 0.003 at % or more and 7.4 at % or less of Ag, and oxygen as the remainder thereof and has a ratio of oxygen to metals, O/(2Ti+0.5Ag), of 0.97 or more. The thin film has a high refractive index and a low extinction coefficient. In addition, the thin film has superior transmittance, minimally deteriorates in reflectance, and is useful as an interference film or a protective film for an optical information recording medium. The film may also be applied to a glass substrate to provide a heat reflective film, an antireflective film, or an interference filter. A method of producing the thin film is also disclosed.

Abstract: Provided is a corrosion-resistant CuZn alloy, in which: the Zn content is 36.8 to 56.5 mass % and the balance is Cu and inevitable impurities; and the ?-phase surface area percentage is 99.9% or greater.